lkml.org 
[lkml]   [2019]   [Jan]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: use generic DMA mapping code in powerpc V4
On Sat, Jan 19, 2019 at 02:02:22PM +0100, Christoph Hellwig wrote:
> Interesting. This suggest it is related to the use of ZONE_DMA by
> the FSL SOCs that your board uses. Let me investigate this a bit more.

As a hack to check that theory I've pushed a new commit to the
powerpc-dma.6-debug branch to use old powerpc GFP_DMA selection
with the new dma direct code:

http://git.infradead.org/users/hch/misc.git/commitdiff/5c532d07c2f3c3972104de505d06b8d85f403f06

And another one that drops the addressability checks that powerpc
never had:

http://git.infradead.org/users/hch/misc.git/commitdiff/18e7629b38465ca98f8e7eed639123a13ac3b669

Can you first test with both patches, and then just with the first
in case that worked?

\
 
 \ /
  Last update: 2019-01-19 15:05    [W:0.172 / U:0.104 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site